[vbox-dev] OpenGL/3D on Mac Hosts... Screenshots

Sergey Dubov Sergey.Dubov at oracle.com
Thu May 30 19:30:58 GMT 2013

Louis King Jr <inlieuoflou at gmail.com> писал(а) в своём письме Thu, 30 May  
2013 22:00:53 +0400:

> This has been a long standing problem with VirtualBox running on Mac  
> hosts. For whatever reason screenshots on Linux guests running >Compiz  
> or Unity or Gnome3 or Cinnamon can not take screenshots. All one gets is  
> an empty black screen. I've been told this is not an issue for >the  
> Windows or Linux versions of VB. As of today's 4.2.51 version it's still  
> an issue. If it is one of the things being worked on currently of  
> >course ignore this message.
> I would mention the current version of Debian 7 with Gnome 3 does  
> actually work as far as screenshots go and I have no idea why.

Is it the case with QImage frame-buffer too?
I mean by default MacOS X host VM uses Quartz2D frame-buffer but there is  
an experimental QImage frame-buffer support which can be used by trunk VM  
through '--rmode image' passed as additional argument to 'VirtualBox  
-startvm <vm name>' like:
VirtualBox -startvm Ubuntu --rmode image

With Best Regards,
[Oracle/VirtualBox] Sergey Dubov
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